Get and Post Methods in PHP: Understanding Data Submission
Learn the differences between GET and POST methods in PHP for sending data from forms. GET method reveals information in the URL, while POST keeps it private. Know when to use each method and their limitations to ensure secure data handling in PHP development.
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Presentation Transcript
Get and Post Assisst. Prof.Dr. huda Abdulaali
When to use GET? Information sent from a form with the GET method is visible to everyone (all variable names and values are displayed in the URL). GET also has limits on the amount of information to send. The limitation is about 2000 characters. However, because the variables are displayed in the URL, it is possible to bookmark the page. This can be useful in some cases. GET may be used for sending non-sensitive data. Note: GET should NEVER be used for sending passwords or other sensitive information
When to use POST? Information sent from a form with the POST method is invisible to others (all names/values are embedded within the body of the HTTP request) and has no limits on the amount of information to send. Moreover POST supports advanced functionality such as support for multi-part binary input while uploading files to server. However, because the variables are not displayed in the URL, it is not possible to bookmark the page.
//http://www.site.com/post?firstname=john&lastname=doe firstname & ? john : <html> <body> <form action="#" method="get"> <input type="text" name="firstname" placeholder="First Name"></input><br/> <input type="text" name="lastname" placeholder="Last Name"></input><br/> <input type="submit" name="submit" value="Submit"></input> </form> </body> </html
GET GET : $firstname = $_GET['fistname']; $lastname = $_GET['lastname'];
<html> <body> <form action="welcome.php" method="post"> Name: <input type="text" name="name"><br> E-mail: <input type="text" name="email"><br> <input type="submit"> </form> </body> </html
POST GET POST POST : method $firstname = $_POST['firstname']; $lastname = $_POST['lastname'];
